In most scenarios sure but not all. I'm just playing devils advocate to your consistency argument. If I expect the car to pull out in traffic like it usually does and it doesn't perhaps the car should always accelerate slowly so i know what i'm going to get every time.
-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Regen Braking in cold weather.
- Thread starter RJ17
- Start date
-
- Tags
- regen regen loss
In most scenarios sure but not all. I'm just playing devils advocate to your consistency argument. If I expect the car to pull out in traffic like it usually does and it doesn't perhaps the car should always accelerate slowly so i know what i'm going to get every time.
And I believe, in theory, cars with heat pumps now have 3 avenues to generate heat for the battery vs just the motors although i'm not sure the heat pump would be able do generate that much additional compared to 7kW from the motors.
I get the argument and there is actually some merit to it, and I've been a bit of a prick in this thread and I apologize for that. For those of us who've had manual cars, done higher-performance driving on the track and all of that, no it's really not a big deal to have regen be a bit weird for me.
But it's hard for people who come from a lifetime of appliance cars and suddenly have to deal with substantial paradigm shifts *and* inconsistent behavior on top of that, and if we want EVs to become the norm, that's gotta be dealt with.
All good, i certainly get where you are coming from on the consistency thing but I'm also the guy that left his car in "roll" after one pedal driving came out because I didn't want the car braking to a stop for me that last 5mph.
CharleyBC
Active Member
Not letting regen put as much high current into the battery aka slowly you down less aggressively.
I'm a first time Tesla owner who just took delivery on the 12th so I can't speak to how things have changed over time. What I do know is that even if I'm navigating to a Supercharger in the cold I never see the regen dots below 50%. I also know that I've preheated the cabin on HI for close to 30 minutes and my regen dots are still close to 50% so it seems like neither really do anything for me. Is this normal, or should I be seeing more regen coming back? Maybe it's part of the 2021/heat pump? The temps have been between 25-45 degrees F.
I''m glad someone mentioned the fact you won't get any back around town, I went for a drive this morning with 0 regen and returned home with the same so I was concerned about that too, but it makes sense given whats been discussed here. Part of me is frustrated that I took delivery in the worst season for EVs but part of me is happy I'm learning in the worst conditions and that come summer it'll be nothing but gravy.
I''m glad someone mentioned the fact you won't get any back around town, I went for a drive this morning with 0 regen and returned home with the same so I was concerned about that too, but it makes sense given whats been discussed here. Part of me is frustrated that I took delivery in the worst season for EVs but part of me is happy I'm learning in the worst conditions and that come summer it'll be nothing but gravy.
It does seem related to the heat pump or possibly the most recent software update. The limited regen does increase over longer drives but I was used to it getting to full regen for most of the drives I do. The car is using scheduled charging and preconditioning. It isn’t a big deal just something I noticed that was different from my 2018.
Interesting, thanks for sharing. Would you mind sharing where you came across this information?
Not sure exactly which part you're referring to, but these posts below have some detailed info and links to helpful graphs showing battery temp, motor (stator) temp, vehicle speed, etc. in various scenarios.
Temps, Precondition, Regen data with GRAPHS
Battery Heating explained
It's also worth mentioning that if your battery sat overnight outside it can a lot of times be much cooler than the current outside temperature
I'm not sure what you are getting at but I appreciate you going through and down voting everything i said. If you finished reading the thread you'll see we came to an agreement like adults.
I'm not sure what you are getting at but I appreciate you going through and down voting everything i said. If you finished reading the thread you'll see we came to an agreement like adults.
JCtx
Member
Approximately how long does that take? And can you pre-program' a time for it to start, or you always have to turn in on at the moment on the phone app? Thx.
Not at all man. With a transmission, you can alter engine braking with as many gears your transmission has... and it'd ALWAYS be the same, no matter the temperature, or how full your fuel tank is. Apparently, with a Tesla, you have many variables that can alter that engine braking amount, from basically none to a lot. And on 2021s it's not adjustable anymore. I guess it's better not to have the battery fully charged (maybe 90% max?), in order to remove that variable. But how cold it is might be out of your control, even if you preheat the battery pack at home, for what I've read. We have to learn to live with it, I guess.
I appreciate what you are saying but the variable is something you can account for and, it's a known. It's not like the engine variable changes on the fly rapidly. You get in the car, and it acts worst case like an automatic vehicle and as you drive it gets more aggressive SLOWLY. I understand it's a changing variable but it's not that big a deal.
IMO, the fact people are coming from ICE cars to "one pedal driving" is much more a factor than regen changing along the way.
IMO, the fact people are coming from ICE cars to "one pedal driving" is much more a factor than regen changing along the way.
JCtx
Member
I don't care about regen, other than I want it to be there if you really need it, like on a downhill 
. My wife liked the 'low' regen on the test car, but I was fine with either one. I'm pretty good with throttle control, so the 1-pedal driving sounds better to me, since it saves the brakes. I hardly used them during the test drive. And could crawl at walking speeds in the 'regular' driving mode with absolute smoothness. Zero issues with the throttle on that car even in the aggressive regen. You just have to learn when you have it and when you don't. Not charging to 100% seems a good start, plus heating the batteries if cold outside. It should be good for something, I guess. We'll figure it out as time passes. No biggie .
. My wife liked the 'low' regen on the test car, but I was fine with either one. I'm pretty good with throttle control, so the 1-pedal driving sounds better to me, since it saves the brakes. I hardly used them during the test drive. And could crawl at walking speeds in the 'regular' driving mode with absolute smoothness. Zero issues with the throttle on that car even in the aggressive regen. You just have to learn when you have it and when you don't. Not charging to 100% seems a good start, plus heating the batteries if cold outside. It should be good for something, I guess. We'll figure it out as time passes. No biggie .
